COMBINATORIAL theory and its applications 
/ edited by P.Erdos, A. Renyi, Vera T.Sos 
 - Amsterdam  North-Holland pub.  1970 
 - 3 v. (v.1-1-390; v.2-395-799; v.3-80 
 - 12-Mar .
<br/><br/> Papers presented at the 'Colloquium on Combinatorial theory and its applications' organized by the the Bolyai Mathematical Society, Balatonfured, Hungary, 24-29 August 1969. 
<br/><br/><label>ISBN: </label>720420377 
<br/><br/><label>Dewey Class. No.: </label>511.6  / COM